EP2028303B1 - Winding apparatus with Fiber dust collecting device - Google Patents
Winding apparatus with Fiber dust collecting device Download PDFInfo
- Publication number
- EP2028303B1 EP2028303B1 EP20080012483 EP08012483A EP2028303B1 EP 2028303 B1 EP2028303 B1 EP 2028303B1 EP 20080012483 EP20080012483 EP 20080012483 EP 08012483 A EP08012483 A EP 08012483A EP 2028303 B1 EP2028303 B1 EP 2028303B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction nozzle
- fiber dust
- balloon
- dust collecting
- collecting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000428 dust Substances 0.000 title claims description 66
- 239000000835 fiber Substances 0.000 title claims description 66
- 238000004804 winding Methods 0.000 title claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000003028 elevating effect Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000005764 inhibitory process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H11/00—Arrangements for confining or removing dust, fly or the like
- D01H11/005—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/70—Other constructional features of yarn-winding machines
- B65H54/702—Arrangements for confining or removing dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/22—Guides for filamentary materials; Supports therefor adapted to prevent excessive ballooning of material
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/003—Twisting machines in which twist is imparted from the supply packages, e.g. uptwist
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- the present invention relates to a winding apparatus with a fiber dust collecting device to suck and collect fiber dust resulting from an operation of unwinding a yarn from a supplying bobbin.
- the winding apparatus in the present invention means an automatic winder apparatus.
- Conventional fiber dust collecting devices of this kind include, for example, one disclosed in the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No. 5-139621 .
- a balloon regulating member that is displaced downward as an unwinding operation progresses is provided with a fiber dust collecting function.
- the balloon regulating member has a double tube structure composed of an inner tube and an outer tube having an inner channel and an outer channel, respectively. An opening through which the fiber dust is sucked is formed in a cylindrical wall of the inner tube which partitions the two channels from each other.
- the fiber dust sucked from the bottom of the inner tube reaches the outer channel via the opening and is then fed to a fiber dust collection box through a suction pipe communicating with the outer channel.
- a yarn unwound from a yarn bobbin forms a balloon and is then conveyed downstream side through the inner channel inside the inner tube.
- a problem with the fiber dust collecting device in the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No. 5-139621 is that the fiber dust is collected immediately above the supplying bobbin.
- the fiber dust collecting device cannot efficiently collect the fiber dust attached to the yarn unwound from the supplying bobbin in the form of a balloon spreading in a horizontal direction. Consequently, the fiber dust is prone to fly in all directions.
- An object of the present invention is to provide in a winding apparatus a fiber dust collecting device that has an excellent fiber dust collecting capability of collecting even a fiber dust attached to a yarn unwound in balloon form, thus allowing the fiber dust to be efficiently collected.
- the present invention is addressd to a winding apparatus with a fiber dust collecting device according to claim 1, to suck and collect a fiber dust resulting from an operation of winding a yarn from a supplying bobbin.
- the fiber dust collecting device is characterized by comprising a suction nozzle including a suction opening through which the fiber dust is sucked and collected, and an elevating and lowering means for displacing the suction nozzle upward and downward, and in that the device is configured such that the elevating and lowering means displaces the suction nozzle downward in conjunction with progress of the operation of unwinding the yarn from the supplying bobbin so that the suction opening of the suction nozzle faces an unwinding position on the supplying bobbin and a balloon formation area in which an unwound yarn forms a balloon.
- the winding apparatus may comprise an unwinding assisting device, and the suction may be located away from a balloon regulating member of the unwinding assisting device.
- the suction nozzle may be coupled to a movable portion of the unwinding assisting device so as to be displaced downward as the movable portion performs an operation of lowering the balloon regulating member.
- the suction opening of the suction nozzle may be formed to be laterally long in a horizontal direction, and a width dimension of the suction opening in the horizontal direction may be set to be larger than a bobbin width of the supplying bobbin.
- bobbin width of the supplying bobbin means the maximum diameter of a supplying bobbin B around which the yarn is wound.
- a duct extending from the suction nozzle to a fiber dust collection box comprises an expandable, flexible tube.
- the fiber dust collecting device is configured such that the elevating and lowering means displaces the suction nozzle downward in conjunction with progress of the operation of unwinding the yarn from the supplying bobbin so that the suction opening of the suction nozzle faces the unwinding position on the supplying bobbin and the balloon formation area in which the unwound yarn forms the balloon.
- the present invention can collect a fiber dust more efficiently than an aspect in which the posture and position of the suction nozzle are fixed. Specifically, the fiber dust results from the contact between the yarn unwound from the supplying bobbin and a yarn layer on a winding core. Consequently, the fiber dust is prone to occur at the unwinding position.
- the unwinding position lowers in conjunction with the progress of the operation of unwinding the yarn from the supplying bobbin.
- the suction nozzle is displaced downward so that the suction opening faces the balloon formation area. Consequently, the fiber dust attached to the yarn unwound in balloon form can be efficiently collected through the suction opening. Therefore, the fiber dust can be prevented from flying in all directions.
- this arrangement prevents the yarn from being sucked into the suction nozzle for fiber dust collection compared to an aspect in which the suction nozzle is provided in the balloon regulating member as in the case of the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No. 5-139621 .
- the operation of unwinding the yarn from the supplying bobbin can be performed appropriately and smoothly.
- the suction nozzle can be displaced downward substantially using the movable portion of the unwinding assisting device as an elevating and lowering means.
- This arrangement can reduce the number of components required and simplify a control mechanism compared to an aspect in which the elevating and lowering means is provided separately from the movable portion of the unwinding assisting device. This enables inhibition of an increase in the manufacturing costs of the winding apparatus resulting from the provision of the fiber dust collecting device.
- the suction nozzle is formed to be laterally long in the horizontal direction, the suction nozzle can be located opposite the unwinding position on the supplying bobbin. Consequently, the fiber dust occurring at the unwinding position can be efficiently sucked. Furthermore, where the width dimension of the suction nozzle is set to be larger than the bobbin width of the supplying bobbin, the fiber dust attached to the yarn unwound from the supplying bobbin in balloon form can be efficiently collected.
- the flexible tube can absorb a variation in the length of the duct associated with the upward and downward displacement of the suction nozzle. Consequently, the configuration of the duct can be simplified. This also enables inhibition of an increase in the manufacturing costs of the winding apparatus resulting from the provision of the fiber dust collecting device.
- FIGS 1 to 5 show an embodiment in which a fiber dust collecting device according to the present invention is applied to an automatic winder (winding apparatus).
- the automatic wider apparatus is composed of a group of winding units arranged in a column.
- the winding unit is constructed using, as a base, a unit frame 1 fixed upright and shaped like a vertically long box.
- An unwinding assisting device 2, a tension device 3, a yarn splicing device 4, a slab catcher 5, and the like are arranged on one side of the unit frame 1 in this order from the bottom to top of the unit frame 1.
- a traverse drum 6, a guide plate 7, a cradle 9, and the like are arranged on the same side of the unit frame 1 as described above and at the top of the unit frame 1; the traverse drum 6 displaceably manipulates (traverses) the yarn Y within the range of a fixed width, the guide plate 7 is located so as to face a traverse area of the traverse drum 6, and the cradle 9 rotatably supports a package P by means of a shaft thereof.
- a relay pipe 10 and a suction mouth 11 are provided in a middle portion of the column of the above-described devices so as to be swingable in a vertical direction; the relay pipe 10 and the suction mouth 11 suck, catch, and pass a cut yarn to the yarn splicing device 4.
- a supplying bobbin B is supported upright below the unwinding assisting device 2.
- the yarn Y run out from the supplying bobbin B in the form of a balloon 13 is checked for a yarn defect while passing through the devices 2 to 5.
- the yarn Y is cut with a cutter provided in the slab catcher 5 and a cutter provided in the tension device 3, with the yarn defect portion sucked and removed.
- the unwinding assisting device 2 comprises a balloon guide 20 composed of a movable cylinder 21 serving as a balloon regulating member regulating the size of the balloon, a fixed cylinder 21 disposed in an upper part of the balloon guide 20, and a cylinder 22 (elevating and lowering means) serving as a movable portion displacing the balloon guide 20 upward and downward.
- the balloon guide 20 is a cylinder having openings at the top and bottom thereof, and is loosely fitted around the outer periphery of a fixed cylinder 21.
- a lateral pair of cover portions 23, 23 is fixed to the outer periphery of the balloon guide 20.
- the cover portions 23, 23 are assembled to a support arm 25 moved upward and downward by a piston rod 24 of the cylinder 22.
- the balloon guide 20 is displaced upward and downward in response to expansion and contraction of the piston rod 24 of the cylinder 22.
- Each of the cover portions 23, 23 is composed of a wing portion 26 extending in the horizontal direction from the support arm 25, and an arm portion 27 extending downward from the tip of the wing portion 26.
- a sensor 31 is disposed on an inner surface of a free end of each of the arm portions 27 to detect a chase portion 30 corresponding to an unwinding position 29 on the supplying bobbin B.
- the sensor 31 is a transmissive sensor composed of a light emitting element and a light receiving element. In an initial condition in which the supplying bobbin B is set in the winding unit, irradiation light from the light emitting element is blocked by the chase portion 30, with no received light detected.
- a controller 32 thus receives an off signal.
- a reference numeral 35 is a suction nozzle in the fiber dust collecting device sucking and collecting the fiber dust resulting from the operation of unwinding the yarn from the supplying bobbin B.
- the suction nozzle 35 has a laterally long main surface wall 36 directed forward so as to lie opposite the supplying bobbin B, a top wall 37 connected to an upper end of the main surface wall 36, and side walls 38 connecting the main surface wall 36 and the top wall 37 together at a right end and a left end, respectively, of the main surface wall 36.
- the suction nozzle 35 is located behind and away from the balloon guide 20; a predetermined distance dimension is set between the suction nozzle 35 and the balloon guide 20.
- a suction port 39 is formed in a laterally central portion of the top wall 37.
- a cylindrical duct 40 is connected to the suction port 39.
- the top wall 37 is composed of a central wall 37a having the suction port 39 and a pair of inclined walls 37b inclined downward in a lateral direction from the opposite ends of the central wall 37a.
- the suction nozzle 35 is installed on the support arm 25 via a coupling piece 41 provided at a front end of the laterally central portion of the top wall 37.
- the cylinder 22, which is the movable portion of the unwinding assisting device 2 performs the operation of lowering the balloon guide 20 to displace the suction nozzle 35 downward.
- the cylinder 22, which is the elevating and lowering means for displacing the suction nozzle 35 upward and downward is a shared component also used as the movable portion of the unwinding assisting device 2.
- the suction nozzle 35 can be displaced downward as the unwinding operation progresses so that the suction opening 42 faces the unwinding portion 29 on the supplying bobbin B.
- the duct 40 comprises a lower duct 40a coupled to the suction nozzle 35, an upper duct 40b leading to the fiber dust collection box, and an expandable, a flexible tube 40c disposed between the lower duct 40a and the upper duct 40b.
- the flexible tube 40c expands and contracts to allow absorption of a variation in the length of the duct 40 associated with the downward displacement of the suction nozzle 35.
- the suction nozzle 35 is located away from the balloon guide 20.
- the present invention can prevent the yarn Y from being inadvertently sucked into the suction nozzle 35. Consequently, according to the present invention, the operation of unwinding the yarn Y from the supplying bobbin B can be performed properly and smoothly.
- the suction nozzle 35 is displaced downward in conjunction with the progress of the operation of unwinding the yarn from the supplying bobbin B so that the suction opening 42 faces the unwinding position 29 on the supplying bobbin B.
- the present invention can thus collect the fiber dust more efficiently than an aspect in which the posture and position of the suction nozzle 35 is fixed. That is, the present invention is excellent in that the suction operation can be performed near the unwinding position, which is a possible source of the fiber dust, thus enabling the fiber dust to be efficiently sucked.
- the fiber dust is attached to the yarn Y unwound from the supplying bobbin B in balloon form, the fiber dust is prone to fly in all directions.
- the operation of sucking air from around the balloon is performed through the suction opening 42 of the wide suction nozzle 35 as in the case of the present embodiment, the fiber dust can be reliably prevented from flying in all directions.
- the device is configured such that the suction nozzle 35 is coupled to the support arm 25, supporting the balloon guide 20, so that as the cylinder 22 performs the operation of lowering the balloon guide 35, the suction nozzle 35 is also displaced downward.
- the present invention can reduce the number of components required and simplify the control mechanism. This enables effective inhibition of an increase in the manufacturing costs of the automatic winder resulting from the provision of the fiber dust collecting device.
- the suction nozzle 35 can be located opposite the unwinding position 29 on the supplying bobbin B. Consequently, the fiber dust occurring at the unwinding position 29 can be efficiently absorbed. Furthermore, where the width dimension of the suction opening 42 in the horizontal direction is set to be larger than the bobbin width (the maximum diameter of the supplying bobbin B around which the yarn is wound) of the supplying bobbin B, the fiber dust attached to the yarn Y unwound from the supplying bobbin B in the form of the balloon 13 can be efficiently collected.
- the width dimension of the suction opening 42 in the horizontal direction is larger than the balloon area (the balloon diameter in a direction orthogonal to a longitudinal direction of the bobbin B) of the yarn Y unwound from the supplying bobbin B in balloon form. This enables collection of the generated fiber dust from the entire balloon area of the yarn Y unwound while being swung in balloon form.
- the duct 40 extending from the suction nozzle 35 to the fiber dust collection box, comprises the expandable, flexible tube 40c.
- the flexible tube 40c can absorb a variation in the length of the duct 40 associated with the upward and downward displacement of the suction nozzle 35. This enables inhibition of an increase in the manufacturing costs of the automatic winder resulting from the provision of the fiber dust collecting device comprising the suction nozzle 35, which can be displaced upward and downward.
- FIGS 6A and 6B show another embodiment of the suction nozzle 35.
- the suction nozzle 35 shown in Figure 6 differs from that in the above-described embodiment in that a coupling portion 45 between the duct 40 (lower duct 40a) and the suction nozzle 35 is formed to widen toward the bottom thereof so that the diameter dimension of the suction nozzle 35 increases sequentially as the nozzle approaches the bottom thereof, so as to form a suction opening 42 that is wide in a width direction.
- the present embodiment is similar to the above-described embodiment shown in Figure 5 .
- the suction nozzle 35 shown in Figures 6A and 6B can provide a larger suction current over a wide range in the width direction of the suction opening 42 of the suction nozzle 35 than the suction nozzle 35 shaped as shown in Figure 5 , described above. Thus, the suction efficiency of the suction nozzle 35 is improved.
- the suction nozzle 35 is configured to be displaceable upward and downward by the cylinder 22, the movable portion of the unwinding assisting device 2.
- the present invention is not limited to this aspect.
- a dedicated actuator may be provided for displacing the suction nozzle 35 upward and downward.
- the suction nozzle 35 is located behind the balloon guide 20.
- the present invention is not limited to this aspect.
- the suction nozzles 35, 35 may be disposed on the right and left sides, respectively, of the balloon guide 20.
- the suction nozzles 35 may be arranged in four directions, that is, in front of, behind, and on the right and left sides of the balloon guide 20.
- the aspect of the suction nozzle 35 is not limited to those illustrated in the above-described embodiments.
Description
- The present invention relates to a winding apparatus with a fiber dust collecting device to suck and collect fiber dust resulting from an operation of unwinding a yarn from a supplying bobbin. The winding apparatus in the present invention means an automatic winder apparatus.
- Conventional fiber dust collecting devices of this kind include, for example, one disclosed in the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No.
5-139621 5-139621 - A problem with the fiber dust collecting device in the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No.
5-139621 - An object of the present invention is to provide in a winding apparatus a fiber dust collecting device that has an excellent fiber dust collecting capability of collecting even a fiber dust attached to a yarn unwound in balloon form, thus allowing the fiber dust to be efficiently collected.
- The present invention is adressed to a winding apparatus with a fiber dust collecting device according to claim 1, to suck and collect a fiber dust resulting from an operation of winding a yarn from a supplying bobbin. The fiber dust collecting device is characterized by comprising a suction nozzle including a suction opening through which the fiber dust is sucked and collected, and an elevating and lowering means for displacing the suction nozzle upward and downward, and in that the device is configured such that the elevating and lowering means displaces the suction nozzle downward in conjunction with progress of the operation of unwinding the yarn from the supplying bobbin so that the suction opening of the suction nozzle faces an unwinding position on the supplying bobbin and a balloon formation area in which an unwound yarn forms a balloon.
- In an aspect of the present invention, the winding apparatus may comprise an unwinding assisting device, and the suction may be located away from a balloon regulating member of the unwinding assisting device.
- The suction nozzle may be coupled to a movable portion of the unwinding assisting device so as to be displaced downward as the movable portion performs an operation of lowering the balloon regulating member.
- In an aspect of the present invention, the suction opening of the suction nozzle may be formed to be laterally long in a horizontal direction, and a width dimension of the suction opening in the horizontal direction may be set to be larger than a bobbin width of the supplying bobbin. The phrase "bobbin width of the supplying bobbin" means the maximum diameter of a supplying bobbin B around which the yarn is wound.
- In an aspect of the present invention, a duct extending from the suction nozzle to a fiber dust collection box comprises an expandable, flexible tube.
- According to the present invention, the fiber dust collecting device is configured such that the elevating and lowering means displaces the suction nozzle downward in conjunction with progress of the operation of unwinding the yarn from the supplying bobbin so that the suction opening of the suction nozzle faces the unwinding position on the supplying bobbin and the balloon formation area in which the unwound yarn forms the balloon. Thus, the present invention can collect a fiber dust more efficiently than an aspect in which the posture and position of the suction nozzle are fixed. Specifically, the fiber dust results from the contact between the yarn unwound from the supplying bobbin and a yarn layer on a winding core. Consequently, the fiber dust is prone to occur at the unwinding position.
- Furthermore, the unwinding position lowers in conjunction with the progress of the operation of unwinding the yarn from the supplying bobbin. Thus, when the suction nozzle is displaced downward in conjunction with the progress of the unwinding operation so that the suction opening faces the unwinding position on the supplying bobbin, as in the case of the present invention, the suction nozzle can always be placed at an optimum position to efficiently collect the fiber dust.
- Additionally, the suction nozzle is displaced downward so that the suction opening faces the balloon formation area. Consequently, the fiber dust attached to the yarn unwound in balloon form can be efficiently collected through the suction opening. Therefore, the fiber dust can be prevented from flying in all directions.
- Where the suction nozzle is located away from the balloon regulating member, this arrangement prevents the yarn from being sucked into the suction nozzle for fiber dust collection compared to an aspect in which the suction nozzle is provided in the balloon regulating member as in the case of the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No.
5-139621 - Where the suction nozzle is fixed to the movable portion of the unwinding assisting device so that the suction nozzle is displaced downward as the movable portion performs the operation of lowering the balloon regulating member, the suction nozzle can be displaced downward substantially using the movable portion of the unwinding assisting device as an elevating and lowering means. This arrangement can reduce the number of components required and simplify a control mechanism compared to an aspect in which the elevating and lowering means is provided separately from the movable portion of the unwinding assisting device. This enables inhibition of an increase in the manufacturing costs of the winding apparatus resulting from the provision of the fiber dust collecting device.
- Where the suction nozzle is formed to be laterally long in the horizontal direction, the suction nozzle can be located opposite the unwinding position on the supplying bobbin. Consequently, the fiber dust occurring at the unwinding position can be efficiently sucked. Furthermore, where the width dimension of the suction nozzle is set to be larger than the bobbin width of the supplying bobbin, the fiber dust attached to the yarn unwound from the supplying bobbin in balloon form can be efficiently collected.
- Where the duct extending from the suction nozzle to the fiber dust collection box comprises the expandable, flexible tube, the flexible tube can absorb a variation in the length of the duct associated with the upward and downward displacement of the suction nozzle. Consequently, the configuration of the duct can be simplified. This also enables inhibition of an increase in the manufacturing costs of the winding apparatus resulting from the provision of the fiber dust collecting device.
- Other features, elements, processes, steps, characteristics and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the present invention with reference to the attached drawings.
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Figure 1 is a vertically sectional side view of an essential part of a fiber dust collecting device according to the present invention. -
Figure 2 is a diagram showing a general configuration of an automatic winder to which the fiber dust collecting device according to the present invention is applied. -
Figure 3 is a front view of the fiber dust collecting device according to the present invention. -
Figure 4 is a vertically sectional front view of the fiber dust collecting device according to the present invention. -
Figure 5 is a perspective view of suction nozzle constituting the fiber dust collecting device. -
Figure 6 is a diagram showing a variation of the suction nozzle, whereinFigure 6A is a vertically sectional front view of the suction nozzle andFigure 6B is a sectional view of the suction nozzle taken along line A-A inFigure 6A . -
Figures 1 to 5 show an embodiment in which a fiber dust collecting device according to the present invention is applied to an automatic winder (winding apparatus). - The automatic wider apparatus is composed of a group of winding units arranged in a column. In
Figure 2 , the winding unit is constructed using, as a base, a unit frame 1 fixed upright and shaped like a vertically long box. An unwinding assistingdevice 2, a tension device 3, ayarn splicing device 4, aslab catcher 5, and the like are arranged on one side of the unit frame 1 in this order from the bottom to top of the unit frame 1. Atraverse drum 6, aguide plate 7, a cradle 9, and the like are arranged on the same side of the unit frame 1 as described above and at the top of the unit frame 1; thetraverse drum 6 displaceably manipulates (traverses) the yarn Y within the range of a fixed width, theguide plate 7 is located so as to face a traverse area of thetraverse drum 6, and the cradle 9 rotatably supports a package P by means of a shaft thereof. Besides the above-described devices, a relay pipe 10 and asuction mouth 11 are provided in a middle portion of the column of the above-described devices so as to be swingable in a vertical direction; the relay pipe 10 and thesuction mouth 11 suck, catch, and pass a cut yarn to theyarn splicing device 4. - A supplying bobbin B is supported upright below the unwinding assisting
device 2. The yarn Y run out from the supplying bobbin B in the form of aballoon 13 is checked for a yarn defect while passing through thedevices 2 to 5. When a yarn defect is found, the yarn Y is cut with a cutter provided in theslab catcher 5 and a cutter provided in the tension device 3, with the yarn defect portion sucked and removed. - As shown in
Figures 1 and3 , the unwinding assistingdevice 2 comprises aballoon guide 20 composed of amovable cylinder 21 serving as a balloon regulating member regulating the size of the balloon, a fixedcylinder 21 disposed in an upper part of theballoon guide 20, and a cylinder 22 (elevating and lowering means) serving as a movable portion displacing theballoon guide 20 upward and downward. Theballoon guide 20 is a cylinder having openings at the top and bottom thereof, and is loosely fitted around the outer periphery of a fixedcylinder 21. A lateral pair ofcover portions balloon guide 20. Thecover portions support arm 25 moved upward and downward by apiston rod 24 of thecylinder 22. Thus, theballoon guide 20 is displaced upward and downward in response to expansion and contraction of thepiston rod 24 of thecylinder 22. - Each of the
cover portions wing portion 26 extending in the horizontal direction from thesupport arm 25, and anarm portion 27 extending downward from the tip of thewing portion 26. Asensor 31 is disposed on an inner surface of a free end of each of thearm portions 27 to detect achase portion 30 corresponding to anunwinding position 29 on the supplying bobbin B. Thesensor 31 is a transmissive sensor composed of a light emitting element and a light receiving element. In an initial condition in which the supplying bobbin B is set in the winding unit, irradiation light from the light emitting element is blocked by thechase portion 30, with no received light detected. Acontroller 32 thus receives an off signal. An unwinding operation progresses from the initial condition, and thechase portion 30 lowers. Then, the light receiving element receives a larger quantity of light and emits an on signal. Upon receiving the on signal from the light receiving element, thecontroller 32 expands thepiston rod 24 of thecylinder 22 to lower thecover portions chase portion 30 to cause the light emitting element to emit the off signal, thecontroller 32 stops thepiston rod 24 of thecylinder 22 from expanding. Repeating the above-described operation of expanding thepiston rod 24 enables theballoon guide 20 to be sequentially displaced downward together with thecover portions - In
Figures 1 to 3 , areference numeral 35 is a suction nozzle in the fiber dust collecting device sucking and collecting the fiber dust resulting from the operation of unwinding the yarn from the supplying bobbin B. As shown inFigure 5 , thesuction nozzle 35 has a laterally longmain surface wall 36 directed forward so as to lie opposite the supplying bobbin B, atop wall 37 connected to an upper end of themain surface wall 36, andside walls 38 connecting themain surface wall 36 and thetop wall 37 together at a right end and a left end, respectively, of themain surface wall 36. Thesuction nozzle 35 is located behind and away from theballoon guide 20; a predetermined distance dimension is set between thesuction nozzle 35 and theballoon guide 20. Themain surface wall 36, thetop wall 37, and theside walls 38, arranged at the right and left ends of thesuction nozzle 35, form asuction opening 42 that is directed and is open toward the supplying bobbin B.A suction port 39 is formed in a laterally central portion of thetop wall 37. Acylindrical duct 40 is connected to thesuction port 39. Thetop wall 37 is composed of acentral wall 37a having thesuction port 39 and a pair ofinclined walls 37b inclined downward in a lateral direction from the opposite ends of thecentral wall 37a. - As shown in
Figure 1 , thesuction nozzle 35 is installed on thesupport arm 25 via acoupling piece 41 provided at a front end of the laterally central portion of thetop wall 37. Thus, thecylinder 22, which is the movable portion of theunwinding assisting device 2, performs the operation of lowering theballoon guide 20 to displace thesuction nozzle 35 downward. In other words, thecylinder 22, which is the elevating and lowering means for displacing thesuction nozzle 35 upward and downward, is a shared component also used as the movable portion of theunwinding assisting device 2. Where the device is configured such that thesuction nozzle 35 is displaced downward in conjunction with the operation of lowering theballoon guide 20 as described above, thesuction nozzle 35 can be displaced downward as the unwinding operation progresses so that thesuction opening 42 faces the unwindingportion 29 on the supplying bobbin B. - As shown in
Figures 1 and4 , theduct 40 comprises alower duct 40a coupled to thesuction nozzle 35, anupper duct 40b leading to the fiber dust collection box, and an expandable, aflexible tube 40c disposed between thelower duct 40a and theupper duct 40b. Theflexible tube 40c expands and contracts to allow absorption of a variation in the length of theduct 40 associated with the downward displacement of thesuction nozzle 35. - According to the fiber dust collecting device configured as described above, the
suction nozzle 35 is located away from theballoon guide 20. Thus, compared to an aspect in which the operation of sucking the fiber dust is performed at a yarn contact position as in the case of the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No.5-139621 suction nozzle 35. Consequently, according to the present invention, the operation of unwinding the yarn Y from the supplying bobbin B can be performed properly and smoothly. - In particular, the
suction nozzle 35 is displaced downward in conjunction with the progress of the operation of unwinding the yarn from the supplying bobbin B so that thesuction opening 42 faces the unwindingposition 29 on the supplying bobbin B. The present invention can thus collect the fiber dust more efficiently than an aspect in which the posture and position of thesuction nozzle 35 is fixed. That is, the present invention is excellent in that the suction operation can be performed near the unwinding position, which is a possible source of the fiber dust, thus enabling the fiber dust to be efficiently sucked. Furthermore, where the fiber dust is attached to the yarn Y unwound from the supplying bobbin B in balloon form, the fiber dust is prone to fly in all directions. However, where the operation of sucking air from around the balloon is performed through thesuction opening 42 of thewide suction nozzle 35 as in the case of the present embodiment, the fiber dust can be reliably prevented from flying in all directions. - The device is configured such that the
suction nozzle 35 is coupled to thesupport arm 25, supporting theballoon guide 20, so that as thecylinder 22 performs the operation of lowering theballoon guide 35, thesuction nozzle 35 is also displaced downward. Thus, compared to an aspect in which separate driving mechanisms are provided for lowering thesuction nozzle 35 and theballoon guide 20, the present invention can reduce the number of components required and simplify the control mechanism. This enables effective inhibition of an increase in the manufacturing costs of the automatic winder resulting from the provision of the fiber dust collecting device. - Where the
suction opening 42 of thesuction nozzle 35 is formed to be laterally long in the horizontal direction, thesuction nozzle 35 can be located opposite the unwindingposition 29 on the supplying bobbin B. Consequently, the fiber dust occurring at the unwindingposition 29 can be efficiently absorbed. Furthermore, where the width dimension of thesuction opening 42 in the horizontal direction is set to be larger than the bobbin width (the maximum diameter of the supplying bobbin B around which the yarn is wound) of the supplying bobbin B, the fiber dust attached to the yarn Y unwound from the supplying bobbin B in the form of theballoon 13 can be efficiently collected. Moreover, the width dimension of thesuction opening 42 in the horizontal direction is larger than the balloon area (the balloon diameter in a direction orthogonal to a longitudinal direction of the bobbin B) of the yarn Y unwound from the supplying bobbin B in balloon form. This enables collection of the generated fiber dust from the entire balloon area of the yarn Y unwound while being swung in balloon form. - The
duct 40, extending from thesuction nozzle 35 to the fiber dust collection box, comprises the expandable,flexible tube 40c. Thus, theflexible tube 40c can absorb a variation in the length of theduct 40 associated with the upward and downward displacement of thesuction nozzle 35. This enables inhibition of an increase in the manufacturing costs of the automatic winder resulting from the provision of the fiber dust collecting device comprising thesuction nozzle 35, which can be displaced upward and downward. -
Figures 6A and 6B show another embodiment of thesuction nozzle 35. Thesuction nozzle 35 shown inFigure 6 differs from that in the above-described embodiment in that acoupling portion 45 between the duct 40 (lower duct 40a) and thesuction nozzle 35 is formed to widen toward the bottom thereof so that the diameter dimension of thesuction nozzle 35 increases sequentially as the nozzle approaches the bottom thereof, so as to form asuction opening 42 that is wide in a width direction. In the other respects, the present embodiment is similar to the above-described embodiment shown inFigure 5 . - The
suction nozzle 35 shown inFigures 6A and 6B can provide a larger suction current over a wide range in the width direction of thesuction opening 42 of thesuction nozzle 35 than thesuction nozzle 35 shaped as shown inFigure 5 , described above. Thus, the suction efficiency of thesuction nozzle 35 is improved. - In the above-described embodiment, the
suction nozzle 35 is configured to be displaceable upward and downward by thecylinder 22, the movable portion of theunwinding assisting device 2. However, the present invention is not limited to this aspect. In an aspect of the present invention, a dedicated actuator may be provided for displacing thesuction nozzle 35 upward and downward. - Furthermore, in the above-described embodiment, the
suction nozzle 35 is located behind theballoon guide 20. However, the present invention is not limited to this aspect. For example, thesuction nozzles balloon guide 20. The suction nozzles 35 may be arranged in four directions, that is, in front of, behind, and on the right and left sides of theballoon guide 20. The aspect of thesuction nozzle 35 is not limited to those illustrated in the above-described embodiments. - While the present invention has been described with respect to preferred embodiments thereof, it will be apparent to those skilled in the art that the disclosed invention may be modified in numerous ways and may assume many embodiments other than those specifically set out and described above. Accordingly, it is intented by the appended claims to cover all modifications of the present invention that fall within the scope of the claims.
Claims (4)
- A winding apparatus with a fiber dust collecting device to suck and collect fiber dust resulting from an operation of winding a yarn from a supplying bobbin (B),
wherein the winding apparatus includes an unwinding assistance device (2) comprising a balloon guide (20) comprising a movable cylinder (21) serving as a balloon regulating member regulating the size of the balloon, and an elevating and lowering means (22) displacing the balloon guide (20) upward and downward, and wherein the fiber dust collecting device comprises a suction nozzle (35) including a suction opening (42) through which fiber dust is sucked and collected, and wherein the elevating and lowering means (22) also displaces the suction nozzle (35) upward and downward,
characterized in that
the elevating and lowering means (22) displaces the suction nozzle (35) in conjunction with the progress of the operation of unwinding the yarn from the supplying bobbin (B) so that the suction opening (42) of the suction nozzle (35) faces an unwinding position on the supplying bobbin (B) and a balloon formation area in which the unwound yarn forms a balloon. - The winding apparatus with a fiber dust collecting device according to claim 1, characterized in that the suction nozzle (35) is located away from the balloon regulating member of the unwinding assisting device (2).
- The winding apparatus with a fiber dust collecting device according to any one of claims 1 or 2, characterized in that the suction opening (42) of the suction nozzle (35) is formed to be laterally long in a horizontal direction, and a width dimension of the suction opening (42) in the horizontal direction is set to be larger than a bobbin width of the supplying bobbin (B).
- The winding apparatus with a fiber dust collecting device according to any one of claims 1 to 3, characterized in that a duct extending from the suction nozzle (35) to a fiber dust collection box comprises an expandable, flexible tube (40c).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007215302A JP4403519B2 (en) | 2007-08-21 | 2007-08-21 | Cotton collection equipment |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2028303A2 EP2028303A2 (en) | 2009-02-25 |
EP2028303A3 EP2028303A3 (en) | 2010-01-06 |
EP2028303B1 true EP2028303B1 (en) | 2011-09-14 |
Family
ID=40225319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080012483 Active EP2028303B1 (en) | 2007-08-21 | 2008-07-10 | Winding apparatus with Fiber dust collecting device |
Country Status (3)
Country | Link |
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EP (1) | EP2028303B1 (en) |
JP (1) | JP4403519B2 (en) |
CN (1) | CN101372297B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113000535B (en) * | 2021-02-18 | 2021-12-10 | 赵牧青 | Multi-adaptability portable dust removal device for spinning |
CN113816214A (en) * | 2021-10-11 | 2021-12-21 | 深圳市金绒达新材料科技有限公司 | Protein fiber yarn traction device for clothing production |
CN114164538A (en) * | 2021-11-24 | 2022-03-11 | 盐城鑫业纺织有限公司 | Covering yarn processing is with removing wadding dust collector |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB959969A (en) * | 1962-07-25 | 1964-06-03 | Hall & Kay Ltd | Spinning and doubling and similar frames |
US5245818A (en) * | 1989-07-24 | 1993-09-21 | Palitex Project Company Gmbh | Method for cleaning yarn supply package protective pots and balloon limiters of spindle assemblies of two-for-one twister yarn processing machines |
IT1246472B (en) * | 1990-10-23 | 1994-11-19 | Savio Spa | IMPROVEMENTS IN SPINNING MACHINES WITH SUCTION SYSTEM TO CAPTURE AND REMOVE PULVISCOLO, FIBERS AND BROKEN WIRES. |
JPH05139621A (en) * | 1991-11-13 | 1993-06-08 | Murata Mach Ltd | Fly recovery device for automatic winder |
IT1269702B (en) * | 1994-01-11 | 1997-04-15 | Savio Macchine Tessili Srl | METHOD AND EQUIPMENT FOR VACUUMING AND FOR AUTOMATICALLY REMOVING THE LANUGGINE AND THE PULVISCOLO IN A WRAPPING STATION |
ITMI20070133A1 (en) * | 2007-01-29 | 2008-07-30 | Savio Macchine Tessili Spa | SUCTION SYSTEM FOR ROCKERS |
-
2007
- 2007-08-21 JP JP2007215302A patent/JP4403519B2/en not_active Expired - Fee Related
-
2008
- 2008-07-04 CN CN2008101282546A patent/CN101372297B/en active Active
- 2008-07-10 EP EP20080012483 patent/EP2028303B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN101372297A (en) | 2009-02-25 |
JP2009046267A (en) | 2009-03-05 |
CN101372297B (en) | 2012-07-18 |
JP4403519B2 (en) | 2010-01-27 |
EP2028303A2 (en) | 2009-02-25 |
EP2028303A3 (en) | 2010-01-06 |
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